Home / 5,279.72-7,919.57-1,769.45

Finding the Fourth Proportional to 5,279.72, 7,919.57 and 1,769.45

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Solution

The fourth proportional to 5,279.72, 7,919.57 and 1,769.45 is: 2,654.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.72 : 7,919.57 = 1,769.45 : x
  2. Step 2: Convert to fraction form
    5,279.72/7,919.57 = 1,769.45/x
  3. Step 3: Cross multiply
    5,279.72x = 7,919.57 × 1,769.45
  4. Step 4: Simplify right side
    5,279.72x = 14,013,247.96
  5. Step 5: Solve for x
    x = 14,013,247.96/5,279.72
  6. Step 6: Final answer
    x = 2,654.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.